Air-brake hose-coupling.



No. 883,814. PATENTED APR. 7, 19-08.

- J. E. LA ROGQUE.

AIR BRAKE HOSE COUPLING.

APPLICATION FILED JULY 24, 1907.

' 2 SHEETS-SHEET 1.

Witngsses: 8 r,

I! I I Attorneys PATENTED APR. 7, 1908;

J..E. LA ROOQUE. AIR BRAKE HOSE COUPLING.

'APPLIGATION FILED JULY 24, L907.

ZSHEETS-SHEET 2.

Witnesses:

Attorneys UNITED STATES ()FFICE. I JOSEPH EUsEBE LA R0651: NOMININQUE, omino, CANADA. .ai'rtf-siaiiKn nosn cournme. l

Nof8 83,81f4. I I Specification ofLetters Patent.

Applicationfi1edIu1y 24, 1907. Serial n; 386,302. g

To all whom-it may concern." I

Be itknown that I, 'JosEPH EUsiaBE LA ltocoi'n, a subject of theKing of Great Britain, residingat Nomininque, countyof Ottawa, in the Province of Quebec, Canada, have, invented certain new and useful Improvements in Air-Brake Hose-Con lingsj and I do hereby declare that the fol owing is a -full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.-.

My invention relates to air brake hose- =cou )lings.

. e object of my invention is to provide a hose-coupling inwhich the valve may be adjusted from the outside of the coupling head.

12 into ,whichprojects a flange 11 annular recess .14, wllichrecess are adapted to receive acompressible' gasket 15. The valve works through and the gasket 15 forms an air tight. joint around the outer wall of the valve. tical wall of the valve 10 is provided with onenings 16 which permit the read passage (ii -air in the direction indicated by t 1e arrows when theopen end of the valve lies flush with the face of the hollow section 1. When the valve is in the )osition shown in'Fig. 4 the openings 10 he heyond the plane of the wall of the section 1 and the air is not permitted to escape. In use two of the couplings described are used to make a joint andeach seetion I is provided with a lip 17 adapted to lengage under a corresponcing flange 18 carried by each section, and also adapted to have its movement axially limited by means of a pin l9carried'inftiie, section 1'.

h ll '1 :the operation of the-invention two of t e 'car'ried 'by adjacent ends of railway cars. When secured together as shown n Fig. 8 the air, or'other medium for pperatiiig the brakes, is permittedto pass freely-between the sections 1 along-the lines indicated by the arrows in Fig. If it "is desired to cut oil' a car, the valve attachet to the'car-to be cut off is adjusted as shown in Figs. 3"and4. The valve attached to the rear-e 'ld oi the forward part of the train'is ad j'usted by actuating the screwthreadelulstein 'Z-iso that the valve 10 will move-to the osition shown in Fig. 4',and so keep the bralie on the forward section inoperative. The valve in the forward endoithecut off section will be ad'- justed' to allow the slowescape of .airin its brake system and the brakes in this section will, as a result, be instantly set as the car is cut off.

It will be noted that no springs are used'to actuate the valve 10 to the position shownin Fig. 4, as the chamber 4 is enlarged and the upper end of the valve 10 is reduced so that there is an adjacent outward and downward pressure on'the valve so that it autoiiiatieally closes without the aid of a s )ring. The degree of the closing of the valve may be regulated trom the outside by turning the slotted head 8, as the movement of the valve canno't'be beyond the button 9.

Having'thus fully described my invention,

A further more general object is to provide My invention consists of the construction, combination and arrangement of parts, as herein illustrated, descrlbed, and claimed; In the accompanying drawings, forming one form of embodiment of my invention,'lin which drawings similar reference characters Figure 1 is a side elevation of two coupling an 36 view oftw'o couplingmembers joined l ig.' is a longitudinal mately centrally of Fig. 2; and, 'Fig. 4 is a loizritudinal verticalsection taken through its r sedposition.

Rolerring-tot-he drawings, 1 designatesa adapted to be engaged'with any common form of flexible air brake hose. The hollow 3 having ."herein achamber 4. I In. one wall of the ch nber 4;there is formed a recess 5 the recess t. iere is formed an interiorly screw thr aded bore 6 is an exteriorly screwthreadrovided' with a slotted head 8 at its outer en into the chamber from the outside. Dis

stem 7 is a retaining button 9.

'Slidably dis ose on the screwthreaded neck 11 ada ted to lie within the recess 5 when the vs vs is in open position.

a simple and easily operated construction.

part of this application, I have illustrate designate correspondingparts, and in which:

' membersjoined together; Fig. 2 is a a section taken approxione coupling membe -showing the valve in hollow section provided with s'crewthreads 2 40 seetio'n'l is provided with an enlarged end and throu h the wall communicating with threaded bare 6. Disposed in the screwed valve stem 7 so that it may be adjusted posed on-the inner end of the screwthreaded stem 7 is a hol ow valve 10 pr vided with a The wall of the chamber 4 opposite to the screwthreadedbore (l provided witlra bore 3, leavingan' and flange the bore 12 The versections-1 and the connected parts are whal- I claim? as new and desire to seizure by Letters Patent is:

An air brake hose coupling comprising a hollow member having an enlarged chamber providedwith a, bore through one wall and e sermvthreeded bore through its 0 posite Wall, a serewthreaded stem disposed t lrough said .sc'reWt-hreaded bore, a perforated cylindrieal valve slidably mounted on said stem and ada ted to be moved to establish communication between the air brake pipe and i the outer atmosphere and a button on the I inner end of said rod adapted to limit the movement of said valve to provide for a slow escape of air from the train 1 valve tolhereby set the brakes.

l In witness \vlmreof I have hereunto set m 5 hand in the presence of two witnesses.

, JOSEPH EL'SE'BE m HUCQEE.

Witnesses:

F. M mum), E; W'Rmirr,

pipe through said. 15 

